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Finding the Fourth Proportional to 247,928.40, 372,238.20 and 154,616.40

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Solution

The fourth proportional to 247,928.40, 372,238.20 and 154,616.40 is: 232,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,928.40 : 372,238.20 = 154,616.40 : x
  2. Step 2: Convert to fraction form
    247,928.40/372,238.20 = 154,616.40/x
  3. Step 3: Cross multiply
    247,928.40x = 372,238.20 × 154,616.40
  4. Step 4: Simplify right side
    247,928.40x = 57,554,130,426.48
  5. Step 5: Solve for x
    x = 57,554,130,426.48/247,928.40
  6. Step 6: Final answer
    x = 232,140.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.